CRP Objectives

Light elements are the dominant impurity species in fusion research
devices. Although a large amount of data exist for a number of processes in
several ion stages of elements of interest, significant gaps remain. The
Subcommittee on Atomic and Molecular Data of the International Fusion Research
Council makes recommendations to the NDS/A+M Unit as to its programme to meet
the pressing needs of the international fusion community. The CRP will
generate new data on processes including excitation, ionization, recombination
and heavy particle collisions for ions of hydrogen, helium, lithium,
beryllium, boron, carbon, nitrogen and oxygen and molecules of these atoms.
Hydrogen isotopes constitute the fuel of fusion reactors, helium is the
product of the fusion reaction, lithium is used as a beam diagnostic material,
beryllium is a wall material of fusion vessels, boron is used as a coating
material in fusion vessels, carbon is used in several fusion divertor plates
and nitrogen is under investigation as a buffer gas in fusion devices. Data
for many of these processes are either poorly known or non-existent.